Nut-lock



(No Model.)

S. WINSOR, W. G. HOLT & P. B. GILBERT. NUT LOOK.

No. 406,074. Patented July 2, 1889.

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UNITED STATES ATENT OFFICE,

SAMUEL WINSOR, WILLIAM G, HOLT, AND PALMER B. GILBERT, OF CASS- VILLE, \VISCONSIN.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent N 0. 406,074, dated July 2, 1889.

Application filed September 5, 1888. Serial No. 284,677. No1nodel.)

T0 all whom it may concern:

Be it known that we, SAMUEL \VINsOR, WILLIAM G. HOLT, and PALMER l3. GILBERT, of Cassville, Grant county, Visconsin, have in vented certain new and useful Improvements in Nut-Locks; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to an improvement in nut-locks, the object of the same being to provide a simple and inexpensive device for locking nuts to bolts that will present a neat appearance and one that can be applied in an instant without the employment of speciallydesigned tools or skilled labor.

With these ends in view our invention consists in the parts and combinations of parts, as will be more fully described, and pointed out in the claim.

In the accompanying drawings, Figure 1 is a view in perspective, showing the bolt, nut, and lock detached. Fig. 2 is a view in elevation, showingthe screw-threaded end of the bolt, the nut, and lock in section; and Fig. S3 is a transverse sectional view on the line :1: a: of Fig. 2.

A represents a bolt of any size and shape, the screw-tlu'eaded end of which is provided with a groove u, starting from the end of the bolt and running wholly or partly throughout the screw-threaded portion thereof. This groove can be any shape and size, and is adapted to receive the tongue (1 of the cap (.7 This cap 0 simply a hollow box having an open face and four sides, the closed face having a central perforation c for the passage of the screw-threaded end of the bolt. The tongue (3 projects into this perforation, and hence it will be seen that when the cap 0 is placed on the screw-threzuled end of the bolt, with the tongue (1 resting in the groove, the cap is held against rotary movement on the bolt and the latter held against rotary movement on the cap.

The nut 13 can be of any shape or size, and

the cavity in cap (1 is shaped to snugly receive 1he nut and rest with the free edges of its walls flush with the rear face of the nut. The nut can be of any of the shapes commonly employed, and is provided on its edges with grooves l), which, in the present instance, are continuous and form a channel around the perimeter of the nut. Two walls a of the cap are provided with perforations located opposite each other and adapted to register with the groove 1) in the nut B when the parts areassembled for the passage of a pin, wedge, or spring-key D, which latter is adapted to prevent the cap from moving ott the nut.

To assemble the parts, the nut is first secured home and the cap passed onto the end of the bolt,with its tongue in the groove of the bolt. If the angles of the cavity or recess in the cap should not register with the angles or corners of the nut, the latter can be turned forward or backward slightly, as the case may be, until the cap can be passed onto the nut. The cap prevents the slightest independent rotary movement of the nut and bolt, while the pin, wet ge, or key D prevents an accidental displacement ol. the cap, and when the parts are once assembled the jarring or tremulous motion of the machinery or structure to which the lock is applied cannot possibly displace or loosen the nut. To remove the nut, it is simply necessary to withdraw the pin, wedge, or key and remove the cap. This leaves the nut tree to be removed by a wrench in the ordinary manner.

\Ve are aware of United States Patents Nos. $47,764, 01,188, and 14c0,119,and we do not desire to claim herein the construction shown in said patents; butlVhat we do claim, and desire to secure by Letters Patent, is

In a nut-lock, the combinatimi, with the threaded bolt A, provided with a longitudinal groove (0, of the nut 13, provided upon each of its sides with a groove 7), the cap 0, recessed to adapt the same to [it over the nut, said cap being provided with a central perfomtion fol-the passage of the bolt, a tongue specification in the presence of the two sub- IO or tenon 0, adapted to fit Within the groove scribing witnesses.

n(" V a of the bolt, 5} 1 too apeituies e, \ih1 eh, SAMUEL ,INEQOR when said cap 1s placed over the nut, ahgn 5 with one of the grooves b, and the locking pin I EER or key D, adapted to pass through the aligned groove and openings, for the purpose speci- \Vitnesses: fied. M. S. SNECLODE,

In testimoiq whereof We have signed this L. M. OKEY. 

